aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/plat-omap
diff options
context:
space:
mode:
authorPaul Walmsley <paul@pwsan.com>2009-02-03 02:10:03 -0700
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-08 17:50:28 +0000
commit5b74c67660dbd536a4f4e8cea12d10683ad2e432 (patch)
treebca554fd538d1bf0d984164acab73d6cc832760b /arch/arm/plat-omap
parentaeec299011da8c3f07a47fe5d988f0eafda53906 (diff)
[ARM] OMAP2/3 clockdomains: combine pwrdm, pwrdm_name into union in struct clockdomain
struct clockdomain contains a struct powerdomain *pwrdm and const char *pwrdm_name. The pwrdm_name is only used at initialization to look up the appropriate pwrdm pointer. Combining these into a union saves about 100 bytes on 3430SDP. This patch should not cause any change in kernel function. Updated to gracefully handle autodeps that contain invalid powerdomains, per Russell King's review comments. Boot-tested on BeagleBoard ES2.1. linux-omap source commit is 718fc6cd4db902aa2242a736cc3feb8744a4c71a. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r--arch/arm/plat-omap/include/mach/clockdomain.h24
1 files changed, 14 insertions, 10 deletions
diff --git a/arch/arm/plat-omap/include/mach/clockdomain.h b/arch/arm/plat-omap/include/mach/clockdomain.h
index 1f51f017378..b9d0dd2da89 100644
--- a/arch/arm/plat-omap/include/mach/clockdomain.h
+++ b/arch/arm/plat-omap/include/mach/clockdomain.h
@@ -1,5 +1,5 @@
/*
- * linux/include/asm-arm/arch-omap/clockdomain.h
+ * arch/arm/plat-omap/include/mach/clockdomain.h
*
* OMAP2/3 clockdomain framework functions
*
@@ -48,11 +48,13 @@
*/
struct clkdm_pwrdm_autodep {
- /* Name of the powerdomain to add a wkdep/sleepdep on */
- const char *pwrdm_name;
+ union {
+ /* Name of the powerdomain to add a wkdep/sleepdep on */
+ const char *name;
- /* Powerdomain pointer (looked up at clkdm_init() time) */
- struct powerdomain *pwrdm;
+ /* Powerdomain pointer (looked up at clkdm_init() time) */
+ struct powerdomain *ptr;
+ } pwrdm;
/* OMAP chip types that this clockdomain dep is valid on */
const struct omap_chip_id omap_chip;
@@ -64,8 +66,13 @@ struct clockdomain {
/* Clockdomain name */
const char *name;
- /* Powerdomain enclosing this clockdomain */
- const char *pwrdm_name;
+ union {
+ /* Powerdomain enclosing this clockdomain */
+ const char *name;
+
+ /* Powerdomain pointer assigned at clkdm_register() */
+ struct powerdomain *ptr;
+ } pwrdm;
/* CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg */
const u16 clktrctrl_mask;
@@ -79,9 +86,6 @@ struct clockdomain {
/* Usecount tracking */
atomic_t usecount;
- /* Powerdomain pointer assigned at clkdm_register() */
- struct powerdomain *pwrdm;
-
struct list_head node;
};